  <!-- 头部 -->
  <div class="container logo-search">
    <div class="col search row-search-mobile">
      <form action="">
        <input class="placeholder" placeholder="搜索……" name="s" autocomplete="off">
      </form>
    </div>

    <div class="row">
      <div class="col logo">
        <h1><a href="/">xxx</a></h1>
      </div>
      <div>
      @@if (context.isCollapse === true) {
        <div class="col right-list"> 
          <button class="btn btn-responsive-nav btn-inverse" data-toggle="collapse" data-target=".left-column" id="pull"> <i class="fa fa-navicon"></i> </button>
        </div>
      }
      </div>
      <div class="col search search-desktop last">
        <form action="" target="_blank">
          <input class="placeholder" id="s" name="s" placeholder="搜索……" autocomplete="off">
        </form>
        <a href="login.html">登录</a>
      </div>
    </div>
  </div>